feat(sdk): stream uploads from source files

[pfwang80s]

Summary

• Upload prepared files directly from the original source URL instead of copying external files into managed staging.
• Use file and stream request bodies for OSS upload paths, including multipart range streams, explicit Content-Length, and Content-MD5 without whole-file payload reads.
• Keep security-scoped bookmark access active across upload, resume, checksum, and completion validation reads.
• Automatically fall back to Qiongche device reinit when initialization reports that the device ID has already been initialized.
• Expand local and online e2e coverage for direct source uploads, multipart streaming, resume, abort/delete, runtime upload events, and Qiongche initialization/upload flows.

Verification

• git diff --check
• swift test --filter QiongcheDataGatewaySDKTests (33 tests passed)
• swift test (240 tests passed)
• swift test --filter LocalStackHarnessTests against the dev deployment config from ../data-platform/_dev_aliyun_deploy.yaml (34 tests passed)
• swift test --filter realAliyunListObjectsFlow against the same dev deployment (1 test passed)

Notes

• The online e2e run used temporary test credentials and devices derived from the dev deployment configuration; no secrets are included in this PR.